Select fittings, weld gaps and center to center or center to flange face to get your cut piece automatically calculated for you. These calculators are currently offered to help verify cut pieces in threaded, butt weld, and socket weld. Please note this is a tool to help with take off math there are several abnormal and non standard fitting types with a different mathematical take off. It should be standard operating procedure to double check formulas and verify take offs match up! You should always enter your fitting size prior to your length. I hope this can help assist fellow pipe trades men in women and teach new comers how fitting take offs work.